Fault-aware Communication Mapping for NoCs with Guaranteed Latency |
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Authors: | Sorin Manolache Petru Eles Zebo Peng |
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Affiliation: | 1.Department of Computer and Information Science,Link?ping University,Link?ping,Sweden |
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Abstract: | As feature sizes shrink, transient failures of on-chip network links become a critical problem. At the same time, many applications
require guarantees on both message arrival probability and response time. We address the problem of transient link failures
by means of temporally and spatially redundant transmission of messages, such that designer-imposed message arrival probabilities
are guaranteed. Response time minimisation is achieved by a heuristic that statically assigns multiple copies of each message
to network links, intelligently combining temporal and spatial redundancy. Concerns regarding energy consumption are addressed
in two ways. First, we reduce the total amount of transmitted messages, and, second, we minimise the application response
time such that the resulted time slack can be exploited for energy savings through voltage reduction. The advantages of the
proposed approach are guaranteed message arrival probability and guaranteed worst case application response time. |
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Keywords: | Networks-on-chip communication synthesis transient link failures |
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